Sectarian violence in Iraq on Monday showed both sides in the conflict at their brutal worst, as Iraqi police officers were reported to have killed scores of Sunni insurgent prisoners along a highway in the south, and militants in the north turned over the bodies of 15 Shiite civilians they had killed, including women and children, only to bomb the cemetery during their funerals, according to one account. In a third episode without clear sectarian links, a family of six, including three children, was found fatally shot in Tarmiya, a Sunni area in Baghdad Province north of the capital. There was no confirmation about who was behind their deaths. The killings of the Sunni prisoners, all of whom had been arrested on terrorism charges but had not been convicted, were reported near Hilla, a town south of Baghdad, and represented the second such episode in less than […]